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Finding the Fourth Proportional to 457,346.90, 630,937.68 and 275,957.66

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Solution

The fourth proportional to 457,346.90, 630,937.68 and 275,957.66 is: 380,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,346.90 : 630,937.68 = 275,957.66 : x
  2. Step 2: Convert to fraction form
    457,346.90/630,937.68 = 275,957.66/x
  3. Step 3: Cross multiply
    457,346.90x = 630,937.68 × 275,957.66
  4. Step 4: Simplify right side
    457,346.90x = 174,112,085,778.63
  5. Step 5: Solve for x
    x = 174,112,085,778.63/457,346.90
  6. Step 6: Final answer
    x = 380,700.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.